Gearbox and differential mechanism of motor tricycle and motor tricycle

Abstract

The gearbox and the differential mechanism of the motor tricycle comprise a box body, a cavity is formed in the box body, the cavity comprises a first cavity body, a second cavity body and a third cavity body, and the first cavity body, the second cavity body and the third cavity body are parallel to one another. A transmission mechanism for transmitting power and a gear shifting mechanism for changing the transmission ratio are installed in the first cavity, the second cavity and the third cavity, an input end opening and an output end opening are formed in the box body, the first cavity is communicated with the power input end opening, and the third cavity is communicated with the output end opening. A plurality of stepped holes connected with one another are formed in the end, close to the opening of the input end, of the first cavity, and the diameters of the stepped holes are sequentially increased in the direction of the opening of the input end, so that the problem that in the prior art, the size of the opening of the input end of a motor tricycle box is fixed and cannot adapt to various types of motors is solved; and the problem of interchangeability of tricycles under different power requirements is also solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes for tricycles, in particular to a gearbox and a differential for a three-wheeled motorcycle and the three-wheeled motorcycle. Background Art

[0002] The gearbox of a three-wheeled motorcycle is usually made of cast iron or aluminum alloy, which is wear-resistant, impact-resistant and has good heat dissipation properties. The inside of the box contains multiple cavities and channels for accommodating and supporting the gear set, bearings, shifting mechanism and other key components of the gearbox. The box is provided with a mounting plate connected to the external bridge housing, and an opening for inputting power is provided on one side of the box. This opening is used to install an input shaft connected to the engine or motor, and the input shaft transmits power to the gear set in the gearbox. A connecting plate for fixing the engine or motor to the box is provided at the opening. Through the mutual cooperation of various components, the driver and passengers can adjust the differential reducer gearbox by operating the shifting mechanism to adapt to different driving conditions, ensuring the smooth operation of the vehicle at various speeds.

[0003] The current tricycle gearbox housing usually adopts a fixed-size opening at the input end, which means that it can only adapt to specific types of motors. When the motor model needs to be replaced or upgraded, the size of the differential reducer housing, input shaft and connecting plate will also change. In order to ensure the strength and life of the use, the boss and connecting plate connected to the bridge housing will also become larger, which means that the differential reducer and gearbox housing must be redesigned or processed, increasing manufacturing costs and maintenance difficulties. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gearbox for a three-wheeled motorcycle, which solves the problem in the prior art that the opening size of the input end of the three-wheeled motorcycle box is fixed and cannot be adapted to various models of motors, and also solves the interchangeability problem under different power requirements of three-wheeled vehicles.

[0005] According to an embodiment of the utility model, a gearbox for a three-wheeled motorcycle includes a case body, a cavity inside the case body, the cavity including a first cavity, a second cavity and a third cavity which are parallel to each other, a transmission mechanism for transmitting power and a shift mechanism for changing the transmission ratio are installed in the first cavity, the second cavity and the third cavity, wherein an input end opening and an output end opening are opened on the case body, a motor connection plate is provided at the input end opening, a plurality of connecting holes are provided on the motor connection plate, the first cavity is communicated with the power input end opening, the third cavity is communicated with the output end opening, and a plurality of stepped holes connected to each other are provided at one end of the first cavity close to the input end opening.

[0006] Compared with the prior art, the utility model has the following beneficial effects: by arranging the first cavity, the second cavity and the third cavity in the casing for installing the transmission mechanism and the shifting mechanism, after the motor connects itself to the transmission mechanism in the casing through the input end opening, the user can realize multi-stage speed change by operating the shifting mechanism to output power with different reduction ratios, so as to adapt to different driving environments. A variety of connection holes are provided on the motor connection plate for connecting different types of motors. When the user needs to replace the motor, since the first cavity is provided with stepped holes of different diameters near the input end opening, due to the different diameters of these stepped holes, motors of different models and different output end sizes can be installed on this casing. Therefore, when replacing different motors, there is no need to replace the casing, which saves the replacement cost, can meet the needs of various motor interfaces on the market, and has strong adaptability.

[0007] Furthermore, mounting holes for bearing installation are provided on both sides of the second cavity and the third cavity, and a mounting groove is provided at one end of each mounting hole facing the interior of the box.

[0008] Furthermore, the second cavity and the third cavity are both provided with extension cavities communicating therewith.

[0009] Furthermore, the first cavity and the second cavity are staggered in the horizontal direction.

[0010] Furthermore, an opening is provided at one end of the box body away from the first cavity, and mounting platforms are symmetrically provided at the end surface of the opening. Each mounting platform is provided with an arc groove, and each mounting platform is detachably provided with a mounting block, and an arc groove is also provided on the side of the mounting block facing the mounting platform.

[0011] Furthermore, it also includes a mounting plate, which is fixedly arranged on one side of the box body and has a plurality of through holes.

[0012] On the other hand, according to an embodiment of the present utility model, a differential for a three-wheeled motorcycle is also provided, which includes a transmission mechanism, a shift mechanism and a gearbox for the three-wheeled motorcycle.

[0013] A three-wheeled motorcycle is also provided, comprising the differential of the three-wheeled motorcycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0015] Figure 2 This is an overall diagram of the embodiment of the utility model after the transmission mechanism and the shift mechanism are installed.

[0016] Figure 3 It is a cross-sectional view of an embodiment of the utility model.

[0017] Figure 4This is a cross-sectional view of the embodiment of the utility model after the transmission mechanism and the shift mechanism are installed.

[0018] In the above drawings: 1. box body; 2. first cavity; 3. second cavity; 4. third cavity; 5. transmission mechanism; 6. shift mechanism; 7. stepped hole; 8. mounting groove; 9. extension cavity; 10. mounting table; 11. mounting block; 12. mounting plate; 13. motor receiving plate. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 As shown in Figure 4, an embodiment of the utility model proposes a gearbox for a three-wheeled motorcycle, including a housing 1, wherein the housing 1 has a cavity, the cavity includes a first cavity 2, a second cavity 3 and a third cavity 4 which are parallel to each other, a transmission mechanism 5 for transmitting power and a shift mechanism 6 for changing the transmission ratio are installed in the first cavity 2, the second cavity 3 and the third cavity 4, wherein an input opening and an output opening are opened on the housing 1, a motor connection plate 13 is provided at the input opening, a plurality of connecting holes are provided on the motor connection plate 13, the first cavity 2 is communicated with the power input opening, the third cavity 4 is communicated with the output opening, and a plurality of stepped holes 7 which are connected to each other are provided at one end of the first cavity 2 close to the input opening. In this embodiment, the diameter of the stepped hole 7 away from the inside of the box increases in sequence along the direction of the input end opening. The transmission mechanism 5 includes components such as a transmission shaft and a gear, and the shift mechanism 6 includes components such as a shift fork shaft and a shift fork. Both are prior arts and will not be described in detail here. When working, by installing a suitable transmission mechanism 5 and a shift mechanism 6 inside the box 1, and then installing and connecting the motor with the opening of the input end on the box 1, the output power of the motor is transmitted to the transmission mechanism 5 in the box 1, and finally the transmission mechanism 5 outputs the decelerated power. When necessary, the user can use the shift mechanism 6 to adjust the transmission The transmission ratio of the mechanism 5 is adjusted to adapt to different driving conditions. Motors of different types are connected to the transmission mechanism 5 through keys. The motor receiving plate 13 fixes the motor. The motor receiving plate 13 is provided with different types of connection holes so that it can adapt to different types of motors. Since the first cavity 2 is provided with a plurality of stepped holes 7 connected to each other near the input end opening, motors of different types can be inserted into the input end opening of the box body 1 and connected to the transmission mechanism 5, so as to adapt to motors of different sizes and different output powers, which is convenient for users to upgrade the motor without replacing the box body 1, thereby saving costs.

[0021] like Figure 1 , 3As shown in Figures 4 and 5, further, mounting holes for bearing installation are provided on both sides of the second cavity 3 and the third cavity 4, and a mounting groove 8 is provided on one end of each mounting hole facing the inside of the box. Since the various components in the box 1 will generate a lot of heat when working, these metal materials will expand and contract when heated or cooled. The mounting groove 8 provided on the mounting hole can provide a certain buffer space for the bearings of the transmission mechanism 5 when the temperature changes, avoiding jamming and damage caused by expansion or contraction. When installing and removing the bearings of the transmission mechanism 5, more operating space can also be provided for the tools, especially when the bearings need to be replaced or maintained, the difficulty of operation can be reduced.

[0022] like Figure 3 As shown in FIG. 4 , further, the second cavity 3 and the third cavity 4 are both provided with an extension cavity 9 connected thereto. The extension cavity 9 increases the space size of the second cavity 3 and the third cavity 4, so that the box 1 can be compatible with transmission shafts of different specifications, and some longer transmission shafts can also be stably installed, thereby improving the versatility and adaptability of the box 1.

[0023] like Figure 3 —4, further, the first cavity 2 and the second cavity 3 are staggered in the horizontal direction. In this embodiment, by staggering the first cavity 2 and the second cavity 3 in the horizontal direction, the space inside the box 1 can be effectively utilized. On the one hand, the first cavity 2 and the second cavity 3 are arranged compactly without overlapping, reducing the overall size of the box 1 while improving the strength and stability of the structure of the box 1, dispersing the load, and reducing stress concentration. On the other hand, the air circulation and heat dissipation effect inside the box 1 are improved, and multiple components of the power mechanism are prevented from being closely arranged on the same horizontal plane, which is conducive to heat dissipation and reducing the problem of local overheating.

[0024] like Figure 1 —4, further, an opening is provided at one end of the box body 1 away from the first cavity 2, and a mounting platform 10 is symmetrically provided at the end surface of the opening, and an arc groove is provided on each mounting platform 10, and a mounting block 11 is detachably provided on each mounting platform 10, and an arc groove is also provided on the side of the mounting block 11 facing the mounting platform 10. In this embodiment, the mounting block 11 and the arc groove of the mounting platform 10 are spliced ​​to form an installation position for bearing installation, and the transmission shaft of the output end gear is installed on the installation position, and the mounting block 11 and the mounting platform 10 are detachably connected by bolts, which is convenient for replacement and maintenance of the transmission shaft.

[0025] like Figure 1 As shown in FIG. 4 , further, a mounting plate 12 is included, which is fixedly arranged on one side of the box body 1, and a plurality of through holes are provided on the mounting plate 12. Specifically, the mounting plate is integrally formed with the box body, and the mounting plate is annularly arranged on the outer wall of the box body, and the mounting plate 12 is used to connect and fix the box body 1 with the external bridge housing.

[0026] On the other hand, according to the embodiment of the utility model, a differential for a three-wheeled motorcycle is also provided, which includes a transmission mechanism 5, a shift mechanism 6 and a gearbox for the three-wheeled motorcycle. When the user needs to upgrade and replace the motor, he can replace the motor of a different model as needed. He only needs to remove the original motor and then connect the replaced motor with the transmission mechanism 5 in the box 1. The first cavity 2 of the box 1 is provided with a plurality of stepped holes 7 connected to each other near the input end opening, which can be used for the installation of motors of different models and different output end sizes, so that there is no need to replace the box 1 with the differential installed, so that the user saves the cost of replacement.

[0027] A three-wheeled motorcycle is also provided, which includes the differential of the three-wheeled motorcycle. The differential is installed on the three-wheeled motorcycle. After driving the three-wheeled motorcycle for a certain number of years or when the original motor is damaged, the driver and passengers will have the need to replace the motor with a new one. The user can choose a motor with appropriate power according to the needs, which has stronger adaptability and can meet the requirements of different motor interfaces on the market.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A gearbox for a three-wheeled motorcycle, characterized in that: include: A box body (1), wherein the box body (1) has a cavity therein, the cavity comprising a first cavity (2), a second cavity (3) and a third cavity (4) which are parallel to each other; A transmission mechanism (5) for transmitting power and a gear shifting mechanism (6) for changing the transmission ratio are installed in the first cavity (2), the second cavity (3) and the third cavity (4); The box body (1) is provided with an input opening and an output opening, a motor connection plate (13) is provided at the input opening, a plurality of connection holes are provided on the motor connection plate (13), the first cavity (2) is connected to the input opening, and the third cavity (4) is connected to the output opening; A plurality of stepped holes (7) connected to each other are provided at one end of the first cavity (2) close to the input end opening.

2. A gearbox for a three-wheeled motorcycle as claimed in claim 1, characterized in that: Both sides of the second cavity (3) and the third cavity (4) are provided with mounting holes for bearing installation, and each mounting hole is provided with a mounting groove (8) at one end facing the interior of the box.

3. The gearbox of a three-wheeled motorcycle as claimed in claim 1, characterized in that: The second cavity (3) and the third cavity (4) are both provided with an extension cavity (9) communicating therewith.

4. The gearbox of a three-wheeled motorcycle as claimed in claim 1, characterized in that: The first cavity (2) and the second cavity (3) are arranged staggered in the horizontal direction.

5. The gearbox of a three-wheeled motorcycle as claimed in claim 1, characterized in that: An opening is provided at one end of the box body (1) away from the first cavity (2), and mounting platforms (10) are symmetrically provided at the end surface of the opening. Each mounting platform (10) is provided with an arc-shaped groove, and each mounting platform (10) is provided with a detachable mounting block (11), and a side of the mounting block (11) facing the mounting platform (10) is also provided with an arc-shaped groove.

6. The gearbox of a three-wheeled motorcycle as claimed in claim 1, characterized in that: It also comprises a mounting plate (12), which is fixedly arranged on one side of the box body (1), and a plurality of through holes are formed on the mounting plate (12).

7. A differential for a three-wheeled motorcycle, characterized in that: The invention comprises a transmission mechanism (5), a gear shifting mechanism (6) and a gearbox for a three-wheeled motorcycle as claimed in any one of claims 1 to 6.

8. A three-wheeled motorcycle, characterized in that: A differential for a three-wheeled motorcycle comprising the following:

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